Gyratory comminutor



- March 5, 1929. R. c. NEWHOUSE GYRATORY COMMINUTOR Filed Dec. 22, 1924Patented Mar. 5, 1929.

UNITED STATES PATENT OFFICE.

RAY o. nnwnousn, or wauwm'osa, WISCONSIN, Assmnbn 'ro ALLIS-CHAIJIIERSMANUFACTURING COMPANY, or MILWAUKEE, wrsconsm, a coaronnrron orDELAWARE.

GYRATORY COMMINUTOR.

Application filed December 22, 1924. Serial No. 757,310.

This invention relates in general to improvements in the art of reducingmaterials,-

and relates more specifically to improvements in the construction andoperation of fine reduction Cl'tlSliBlS or comminutors for rock,

ore, coal, or the like.

An object of the invention is to provide an improved machine fordisintegrating relatively hard substances. Another object of theinvention is to provide a simple andeliicient gyratory connninutor. 1

It is frequently desirable in various industries, to reduce materialwhich has been pre viously reduced to a relatively granular state, to afine powder. The machines for accomplishing, such results are commonlyknown as fine reduction crushers or comminutors. It is an object of thepresent invention to provide a simple, compact, and eflicient reduc tioncrusher or comminutor operable at high speed and having maximumcapacity. These and other objects and advantages of the presentimprovement will be apparent in the course of the following description.I

The novel method of freely suspending a crusher, disclosed but notclaimed broadly herein, forms the subject of a copcnding ap plicationfiled concurrently herewith.

A clear conception of an embodiment of the invention and of theoperation of devices constructed in accordance therewith may be had byreferring to the drawing accompanying and forming a part of thisspecification in which like reference characters designate the same orsimilar parts in the various views.

Fig.1 is a transverse horizontal section through an improved .gyratorycomminutor, the section being taken directly above the comminutingchamber.

Fig. 2 is a central vertical section through the improved gyratorycomminutor.

The improved gyratory comminutor illustrated in the drawing, comprisesgenerally an outer annular comminuting member forming a race 3; an innercomminuting member or ball 2 rollable along the inner surface of therace 3; an unbalanced impeller or actuator 23 mounted upon a verticalactuator shaft 7 and adapted to gyrate the race 3; a cup shaped framemember 4 supporting the race 3 and providing a lower guide bearlng 18for the shaft 7; a prime mover or electric motor 11 for driving theactuator shaft 7 a frame member-or spider 22 for supporting the mem- 11above the frame member 4:; and

a flexible suspension comprising cables 8 for supporting both thecrusher and its prime mover. a

The annular race 3 isrigidly secured to the upwardly extending wall ofthe frame memher 4, and the bottom of the member 4 is preferablyprotected by a wearing plate 19. The interior of the frame member 4forms a comminuting chamber 101 within which the ball 2 is freelyrevoluble. The ball 2 is disposed between two radiating weights 6 formedintegral with the actuator 23, these weights engaging the ball 2 onlywhen the machineis being started. The actuator 23 has a series ofdownwardly and outwardly directed feed openings 9 therein, the upperextremities of which communicate with the interior of a downwardlydiverging annular guide casing 16. A material supply chute 15 has itsdelivery end directed into the upper opening of the guide casing 1611sshown in Fig. 1. a l a The vertical actuator shaft 7 which supports theactuator 23 has its lower extremity mounted in the guide bearing 18which is accessible upon removal of the cap 20, and has its upper endmounted in acombined thrust and guide bearing 13 which is supportedbythe spider 22. The spider 22 supports the "electric motor 11 above andin line with the actuator shaft- 7 the shaft 14 of the motor beingdirectly connected to the upper extrem ity of the actuator shaft 7 bymeans of a flexible coupling 12. An annular. guard casing 17 carried bvthe spider 12 extends above the crushing chamber and convergesdownwardly below the crusher. toward a discharge opening 21. l

The spider 22 comprises three substantially radial arms formed integralwith a rings member 5 which is rigidlyconnected to the frame member -1as indicated in the drawing. The

race 3... After the machinahas beenthus set in motion, the unbalancedweights 6 of the actuator 23 cause the outer con'nninuting member orrace 3 to gyrate and the centrifugal force created Within the innerconnninuting member or ball 2 causes this ball to as sume a position asindicated in Fig. 1, midway between the Weights 6. The material admittedto the crushing chamber from the feed spout and through the casting 16and passages 9, is caused by centrifugal force to flow outwardly and tolodge upon the race 3. 7 As the ball 2 rolls over the n'laterial. uponthe race 3, the particles of material are reduced and the iine materialis discharged by centrifugal force over the top of the race 3 and intothe guard casing 17 Where it flows by gravity downwardly through thefinal discharge opening 21.

It Will be noted that during gyration of the crusher, the flexible oryielding support altorded by the suspension cables 8, permits free gration oi the crusher Without transmitting vibrations to the stationarysupporting structure. The various bearings of the machine are protectedagainst entry 01 undesirable substances and are readily accessible forlubrication. Due to the high speed of operation of the machine, largecapacity is attainable with a relatively compact structure operable withminimum power. The crushing members 2, 3 are readily replace able whenWorn to such an extent as to be ineflicient, as are also the liningplates 19.

It should be understood that it is not desired to limit the invention tothe exact details of construction and operation herein shown anddescribed for various modifications Within the scope of the claims mayoccur to persons skilled in the art.

I It is claimed and desired to secure by Letters Patent 1. Incombination, relatively movable inner and outer comminuting members,said outer member being fixed against rotation, and means for gyratingsaid outer member and for causing rotation and orbital advancement ofsaid inner member.

9.. In combination, relatively movable inner and outer connninutingmembers, said outer member being fixed against rotation, and means torgyrating said outer member and for causing said inner member to rollm'bitally within said outer member;

3. In combination, relatively movable inner and outer comminutingmembers. and an unbalanced rotary impeller for gyrating said outermember and for orbitally advancing said inner member to createcentrifuge crushing force therein.

4. In combination, relatively movable inner and outer comminutingmembers, and means for gyrating said outer member to cause said innermember to roll orbitally upon a surface thereof so as to createcentrifugal crushing force in said inner memher.

5. In combination, a rotary impeller, a connninuting member movable byand about the axis of said impeller, and a second comminnting membergyratable by said impeller and surrounding said movable member.

6. In combination, a rotary impeller, a comminuting member movable byand about the axis of said impeller, and a second comminuting membersurrounding said first mentioned member, said second member beinggyratable by said impeller relatively to said axis.

7. In combination, an annular comminuting member, means for gyratingsaid member with the plane of annularity horizontal, a rotarycomminuting member cooperable with the interior of said gyratory memberto effect reduction of material, and means for orbitally advancing saidrotary member.

8. In combination, an outer freely swingable connninuting member, asecond comminuting member supported by and freely movable Within saidswingable member, and means for moving said second member.

9. In combination, inner and outer freely suspended coacting comminutingmembers, and means for gyrating said outer member and for causing saidinner member to roll orbitally therein.

10. In combination, means forming a race, a member freely revoluble uponsaid race, means for gyrating said race and for revolving said member, aprime mover for actuating said gyrating means, and means cooperatingWith said gyrating means for admitting to the path of said member onsaid race material requiring reduction.

l1. In combination, means forming a race, a member freely revoluble uponsaid race, means for gyrating said race and for revolving said member,means for yieldably suspending; said race, and means cooperating withsaid gyrating means for admitting to the path of said member on saidrace material requiring reduction.

12. In combination, means forming a race, a member freely revoluble uponsaid race, means for gyrating said race and for revolving said member, aprime mover for said gyrating means supported from said race, meanscooperating with said gyrating' means for adn'litting to the path ofsaid member material requiring a reduction, and a yieldable suspensionfor said race, member, and prime mover.

13. In combination, an outer commmutingmember forming an annularhorizontal race, a rollable comminuting member orbitally movable alongsaid race by the gyration of said annular member to crush material, andmeans for gyrating said outer member and for advancing said rollablemember in a horizontal plane.

14. In combination, an outer comminuting member forming an annularhorizontal race.

movable WlthlIlSald race to crush material,

an impeller for simultaneously gyrating said 10 outer member and formoving said inner member along said race in a horizontal lane, and meansfor feeding material to sai race.

In testimony whereof, the signature of the inventor is affixed hereto.

RAY C. NEWHOUSE.

